← Basement finishing bid calculator
Basement remodelers get shopped on a published $30 a square foot finished basement Facebook special. Those numbers cannot see the bath or the egress. Eight hundred square feet of rec-room paint, drop ceiling, and carpet is a different job from 1,000 SF of legal living with a full bath, two bedrooms, two egress windows, HVAC, and a permit.
Open the free basement finishing bid calculatorA basement finish is finished square feet, then how much of the shell you are actually selling. Rec-room is paint, a drop ceiling, and carpet on walls that already stand. Framed-finish is studs, insulation, and drywall. Legal-living adds habitable-space extras. Drop ceiling is a grid. Drywall ceiling is hang and finish. Carpet is the cheap special. LVP is more hours and a higher invoice.
The cheap special is almost always 800 SF of paint, drop ceiling, and carpet, no bath, no egress, no HVAC. A bedroom suite is a different crew month. Matching a per-SF number on a legal-living job is how a sold basement becomes a loss when the wet work and the egress eat the margin.
Basement waterproofing is an interior drain, window wells, and a sump pit. Crawl-space encapsulation is a liner and access. A walk-in shower is a wet area, a slope, and glass. Drywall as a job is hang and finish gypsum. Flooring as a job is floor waste and tear-out. Interior painting is a coat. This prices a basement finish: finished SF, scope, ceiling, floor, and extras.
Load the wage with payroll burden. Add overhead as a share of direct cost. Then take margin as a share of the customer’s price, not a markup on cost. The walk-away number is total cost. A proposed price under that number loses money before you take anything out of it.
This page is a walkthrough of the arithmetic in the basement finishing bid calculator. It is not a building-code determination, a waterproofing design, a habitable-space certificate, or a price you should copy onto a contract. Already holding a flyer number? See should I charge $30 a square foot to finish a basement for the walk-away price by scope.
Charge from finished square feet, scope, ceiling, floor, bath, and extras — not a published $30 / SF special. Eight hundred square feet of rec-room paint, drop ceiling, and carpet is a different job from 1,000 SF of legal living with a full bath, two bedrooms, two egress windows, HVAC, and a permit.
No. Rec-room is paint, a drop ceiling, and carpet on walls that already stand. Framed-finish is studs, insulation, and drywall. Legal-living adds habitable-space extras. Matching a per-SF special on a bedroom-suite finish is how a sold basement becomes a loss when the wet work and the egress eat the margin.
A half bath is a toilet and a sink. A full bath is a shower too. Egress windows, bedroom closets, a stair rebuild, a wet bar, HVAC extend, and a permit do not live in a published per-SF dump.
No. Basement waterproofing is an interior drain, window wells, and a sump pit. Crawl-space encapsulation is a liner and access. A walk-in shower is a wet area, a slope, and glass. Drywall as a job is hang and finish gypsum. This prices a basement finish: finished SF, scope, ceiling, floor, and extras.